/**
 *
 *  UTF-8 data encode / decode
 *  http://www.webtoolkit.info/
 *
 **/

var UTF8 = {

  // public method for url encoding
  encode : function (string) {
    string = string.replace(/\r\n/g,"\n");
    var utftext = "";

    for (var n = 0; n < string.length; n++) {

      var c = string.charCodeAt(n);

      if (c < 128) {
        utftext += String.fromCharCode(c);
      }
      else if((c > 127) && (c < 2048)) {
        utftext += String.fromCharCode((c >> 6) | 192);
        utftext += String.fromCharCode((c & 63) | 128);
      }
      else {
        utftext += String.fromCharCode((c >> 12) | 224);
        utftext += String.fromCharCode(((c >> 6) & 63) | 128);
        utftext += String.fromCharCode((c & 63) | 128);
      }

    }

      return utftext;
    },

    // public method for url decoding
    decode : function (utftext) {
      var string = "";
      var i = 0;
      var c = c1 = c2 = 0;

      while ( i < utftext.length ) {

        c = utftext.charCodeAt(i);

        if (c < 128) {
          string += String.fromCharCode(c);
          i++;
        }
        else if((c > 191) && (c < 224)) {
          c2 = utftext.charCodeAt(i+1);
          string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
          i += 2;
        }
        else {
          c2 = utftext.charCodeAt(i+1);
          c3 = utftext.charCodeAt(i+2);
          string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
          i += 3;
        }

      }

      return string;
    }

  }